dzhokhar tsarnaev is in prison tonight held as the prime suivg suspt in last week's attacks. and lawmakers are debating how to stop it from happening again. >> we need to understand that bin laden may be dead, but the war against radical islam is very much alive. radical islam is on the march. and we need to up our game. >> i think the world has had enough of people who have no belief system, no policy for jobs, no policy for education, no policy for rule of law, but who just want to kill people because they don't like what they see. there's not room for that. gwen: but what to do? revoke the suspects' citizenship? refuse to extend the right to legal representation? find a new way to distinguish between lone threats and al qaeda threats? all those things and more appear to at least be on the table. so what of those things is up first? >> well, i think determining whether it's lone wolf or whether there was some distinct link to terrorism. i think that's -- or extremists abroad. that's what they're focusing on right now. i think initially they think, yes, they're lone wolves.